mv arena.cc arena.cpp
mv bloom.cc bloom.cpp
mv cache.cc cache.cpp
mv coding.cc coding.cpp
mv comparator.cc comparator.cpp
mv crc32c.cc crc32c.cpp
mv env.cc env.cpp
mv env_posix.cc env_posix.cpp
mv filter_policy.cc filter_policy.cpp
mv hash.cc hash.cpp
mv histogram.cc histogram.cpp
mv logging.cc logging.cpp
mv options.cc options.cpp
mv status.cc status.cpp
